If I were you, I would take it up to 2000 to start out, a little less strong compared to 1000. See how it does, mine at 2000 was still real strong but carried really well at many house's I used it on, very versatile.
I then polished it later in the season, just to see how it would do. It has since stayed at the surface, it is still strong in oil, but I am able to use it longer with fewer adjustments.
I have another NIB that I was going to drill and leave OOB, but they are 16lbs and I have since switched to 15lbs.
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FOR SALE:
Faball Black Hammer 16lb